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RADON MEASUREMENTS TABLE BY COUNTY AND ZIP CODE

The numbers of results at various radon levels, tabulated below, are from measurements in basements, up to a week in duration, while windows are kept closed.  Because there is less radon upstairs and less when windows are open, this table represents neither average resident exposures nor their lung cancer risks from radon.

The data were obtained over many years, largely from companies that sell radon detectors to the public, and are only a fraction of all radon measurements that have been made in Wisconsin.

Estimate the fraction of houses with average occupant exposures (house bottom to top) greater than 4 pCi/L for the radon averaged over a year: divide the number in the “>10 pCi/L” column by the “Total No.” (of measurements) column.  (Average between basement and 1st floor: 40%)  For further information on the relationship,  click here.

The data listed for Zip Codes crosses county borders.

 

Wisconsin Measurement Summary - 2009

Numbers of Measurements versus Radon:

 

County

Zip
Code

No. of Measurements

High
pCi\L

Total
No.

#  4 - 10
pCi\L*

#  >10
pCi\L

Sheboygan County

53001 15 3 3 35.0
  53011 9 1 1 12.5
  53013 25 6 0 7.3
  53015 38 7 2 43.9
  53020 31 8 7 16.9
  53023 15 5 2 18.5
  53026 1 0 0 2.0
  53031 1 1 0 6.9
  53040 93 34 8 22.5
  53044 31 8 2 18.3
  53070 25 5 2 16.6
  53073 103 32 14 77.57
  53075 38 17 10 18.4
  53079 16 4 0 7.4
  53081 280 41 2 33.4
  53082 16 2 0 5.6
  53083 202 46 9 18.49
  53085 77 29 2 10.99
  53093 11 4 1 13.6

County Totals

 

1,027

253

65

 

       * pCi/L: picoCuries per Liter, a way of measure radon concentration

 

 

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